This article show how to make a Simple Morse Key Circuit using IC 555, which is an easy circuit and is good for Morse code practice. IC 555 can work in many ways, in this project it work as astable multivibrator which means it make signal by itself and there is no need for outside […]
Oscillator Circuits
Simple Ticking Bomb Simulator Circuit
This post is about a Simple Ticking Bomb Simulator Circuit. It make ticking sound like real bomb in movie or game. This circuit is just for fun and with no real danger. Circuit Working: Parts List: Component Type Value Quantity Resistor 47k 1/4 watt 1 Capacitors Electrolytic 10μF 25V 2 Semiconductors IC 555 1 Speaker […]
Simple IC 555 Oscillator Circuits
Simple IC 555 Oscillator Circuits is a 555 timer chip which common and easy to use. It is good for many projects. But for some circuits we must know how it works when not active. Two main pins: IC 555 Pinouts Here is a list that shows what each pin on the chip does. IC […]
Simple Voltage Controlled Oscillator Circuit
Imagine a small device that make sound like whistle but we can turn one knob to make sound go high or low. This is same like what Simple Voltage Controlled Oscillator Circuit or VCO can do. It is an electronic thing that make signal again and again mostly like in square wave. The speed of […]
Simple Pierce Oscillator Circuit
We need very perfect and steady beat for song? Simple Pierce Oscillator Circuit is like music tool that gives same note every time but very correct. It uses special crystal like tuning fork to make very stable signal with right frequency. That is why many electronics use it like clocks because it keep rhythm same […]
Simple Hartley Oscillator Circuit
Simple Hartley Oscillator Circuit is like small sound maker with electric. It make smooth sound like whistle and does not stops. It is use coil with center tap like two coil join. One capacitor help keep sound going. Need one active part to make sound strong. This sound circuit is different from others. Circuit Working: […]